哈大铁路客运专线新开河特大桥138m钢箱叠拱桥“先梁后拱”施工技术  

Construction of 138 m Steel Box Superimposed Arch Bridge with “Beaming before Arching” Method for Xinkai River Extra-long Bridge on Harbin-Dalian Passenger Dedicated Line

作　　者：郝良秋 赵亚楠 

机构地区：[1]中交隧道工程局有限公司,北京100088

出　　处：《铁道标准设计》2012年第5期109-112,共4页Railway Standard Design

摘　　要：哈大铁路客运专线跨越长春市富民大街的新开河特大桥设计采用了1-138 m钢箱叠拱结构,为了满足钢箱叠拱桥后90孔32 m简支梁架设需要,保证架梁工期,钢箱叠拱桥采用"先梁后拱"法施工。就钢箱叠拱桥"先梁后拱"法现场施工特点、施工操作要点及施工关键技术进行详细阐述。钢箱叠拱桥"先梁后拱"法在该桥成功运用。1-138 m steel box superimposed arch structure is employed for the construction of Xinkai River Extra-long Bridge over-crossing Fumin Street of Changchun.In order to meet the requirements for the erection of 90-span 32 m simple supported beams and the tight schedule,the process of 'beaming before arching' is used.This paper introduces and explains in detail the particularities,operation essentials and technologies related to 'beaming before arching'.The application of such process has proved successful to the bridge.

关 键 词：哈大客运专线 铁路桥 钢箱叠拱桥 施工 

分 类 号：U238[交通运输工程—道路与铁道工程] U448.22[建筑科学—桥梁与隧道工程]